To prevent any stupid answer, I will put the ONLY source here:
A Great Crowd of True Worshipers—From Where Have They Come?
The “Other Sheep”—Are They Gentile Christians?
6 After mentioning one sheepfold at John 10:7-15, Jesus brought another group into the picture, saying: “I have other sheep, which are not of this fold; those also I must bring, and they will listen to my voice, and they will become one flock, one shepherd.” (John 10:16) Who are those “other sheep”?
7 Christendom’s commentators generally take the view that these other sheep are Gentile Christians and that those in the sheepfold referred to earlier are Jewish, those who were under the Law covenant, and that both groups go to heaven. But Jesus was born a Jew and was by birth under the Law covenant. (Galatians 4:4) Furthermore, those who view the other sheep as Gentile Christians who will be rewarded with heavenly life are failing to take into account an important aspect of God’s purpose. When Jehovah created the first humans and put them in the garden of Eden, he made it clear that his purpose was that the earth be populated, that all of it be a paradise, and that its human caretakers enjoy life forever—on the condition that they respect and obey their Creator.—Genesis 1:26-28; 2:15-17; Isaiah 45:18.
8 When Adam sinned, Jehovah’s purpose was not thwarted. God lovingly made provision for Adam’s offspring to have the opportunity to enjoy what Adam had failed to appreciate. Jehovah foretold that he would raise up a deliverer, a seed, through whom blessings would be made available to all nations. (Genesis 3:15; 22:18) That promise did not mean that all good people on earth would be taken to heaven. Jesus taught his followers to pray: “Let your kingdom come. Let your will take place, as in heaven, also upon earth.” (Matthew 6:9, 10) Not long before he spoke the illustration recorded at John 10:1-16, Jesus had told his disciples that it was only to a “little flock” that his Father had approved of giving the heavenly Kingdom. (Luke 12:32, 33) So when we read Jesus’ illustration of himself as the Fine Shepherd who surrenders his soul in behalf of his sheep, it would be a mistake to exclude from the picture the majority of those whom Jesus brings under his loving care, the ones who become earthly subjects of his heavenly Kingdom.—John 3:16.
9 As early as 1884, the Watch Tower identified the other sheep as being people who would be given opportunity to live on this earth under conditions that would fulfill God’s original purpose. Those early Bible Students realized that some of these other sheep would be people who had lived and died before Jesus’ earthly ministry. There were, however, some details that they did not understand correctly. For example, they thought that the gathering of the other sheep would take place after all the anointed ones had received their heavenly reward. Still, they did definitely realize that the other sheep were not simply Gentile Christians. The opportunity to become one of the other sheep is open to both Jews and Gentiles, to people of all nations and races.—Compare Acts 10:34, 35.
10 To fit the description given by Jesus, the other sheep must be people who, regardless of racial or ethnic background, recognize Jesus Christ as the Fine Shepherd. What does that include? They must manifest meekness and a willingness to be led, which qualities are characteristic of sheep. (Psalm 37:11) As is true of the little flock, they must “know [the fine shepherd’s] voice” and not allow themselves to be led off by others who may seek to influence them. (John 10:4; 2 John 9, 10) They must appreciate the importance of what Jesus did in surrendering his soul in behalf of his sheep and exercise full faith in that provision. (Acts 4:12) They must “listen” to the voice of the Fine Shepherd when he urges them to render sacred service only to Jehovah, to keep on seeking first the Kingdom, to keep separate from the world, and to show self-sacrificing love for one another. (Matthew 4:10; 6:31-33; John 15:12, 13, 19) Do you fit that description of those whom Jesus views as his other sheep? Do you want to? What a precious relationship opens up to all who truly become Jesus’ other sheep!
© 2010 Watch Tower Bible and Tract Society of Pennsylvanias
If you read it carefully, you will see that it is NOT ANSWERED! How?
Christendom’s commentators generally take the view that these other sheep are Gentile Christians and that those in the sheepfold referred to earlier are Jewish, those who were under the Law covenant, and that both groups go to heaven.
You will notice that the article answers the question "WHY WE CAN SAY THAT BOTH GROUPS WILL NOT GO TO HEAVEN?"
Imagine whole article if this sentence was written:
Christendom’s commentators generally take the view that these other sheep are Gentile Christians and that those in the sheepfold referred to earlier are Jewish, those who were under the Law covenant.
Without that addition, "and that both groups go to heaven". What would they answer then? That's what I expect. I don't ask about different hopes - heavenly and earthly. I ask WHY THE "OTHER SHEEP" ARE NOT GENTILE CHRISTIANS?
Thank you again!